CN110027523A - The pedal sense simulator of vehicle and vehicle with it - Google Patents

The pedal sense simulator of vehicle and vehicle with it Download PDF

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Publication number
CN110027523A
CN110027523A CN201810031955.1A CN201810031955A CN110027523A CN 110027523 A CN110027523 A CN 110027523A CN 201810031955 A CN201810031955 A CN 201810031955A CN 110027523 A CN110027523 A CN 110027523A
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CN
China
Prior art keywords
pedal
sliding block
elastic component
shell
vehicle
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Granted
Application number
CN201810031955.1A
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Chinese (zh)
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CN110027523B (en
Inventor
欧阳鑫
王铁君
李传博
刘苏丽
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN201810031955.1A priority Critical patent/CN110027523B/en
Publication of CN110027523A publication Critical patent/CN110027523A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00Brake-action initiating means
    • B60T7/02Brake-action initiating means for personal initiation
    • B60T7/04Brake-action initiating means for personal initiation foot actuated

Abstract

The invention discloses a kind of pedal sense simulator of vehicle and with its vehicle.Vehicle includes pedal, and pedal sense simulator includes shell, slider-crank mechanism, driving part, mobile putter, the first elastic component and the second elastic component.Slider-crank mechanism includes crank, connecting rod and sliding block, and the both ends of connecting rod are connected with crank and sliding block respectively, and sliding block is set inside the shell with being reciprocally moveable.Driving part is connected with one end of crank.One end of mobile putter and sliding block cooperate to drive sliding block mobile, and the other end of mobile putter is suitable for being connected with pedal.First elastic component, the second elastic component are all provided with inside the shell, the both ends of first elastic component are only against on shell and sliding block respectively, one end positioning of second elastic component is on the shell, when pedal is not triggered, the other end of second elastic component and sliding block interval are arranged, and compress the second elastic component after the mobile setting stroke of sliding block.The response speed and mechanical performance of motor vehicle braking system can be improved in the pedal sense simulator of the embodiment of the present invention.

Description

The pedal sense simulator of vehicle and vehicle with it
Technical field
The present invention relates to technical field of vehicle, specifically, more particularly to a kind of vehicle pedal sense simulator and have Its vehicle.
Background technique
In order to improve the effective brake of automobile, automobile generallys use brake-by-wire, and brake-by-wire not only has response speed Fastly, the features such as control precision is high, braking ability is good, flexible arrangement, but also can be integrated with automobile kinetic-control system, The brake force of flexibility and changeability is provided for vehicle.On-line Control is moved in system, due to eliminating between brake pedal and brake Hydraulic or mechanical connection, so that driver feeds back when can not directly perceive braking to the braking reaction force on brake pedal, from And the brake feel for losing Conventional braking systems causes the brake feel of pedal bad.Brake feel is a kind of comprehensive feeling, It includes pedal brake feeling, the vehicle braking deceleration that driver experiences, brake noise acoustically and visual The factors such as vehicle deceleration, wherein pedal brake feels it is most important component part.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes a kind of vehicle Pedal sense simulator, the pedal sense simulator of the vehicle has the advantages that structure is simple, mechanical performance is good.
The present invention also proposes that a kind of vehicle, the vehicle have the pedal sense simulator of vehicle as described above.
The pedal sense simulator of vehicle according to an embodiment of the present invention, the vehicle includes pedal, the pedal sense simulation Device includes: shell;Slider-crank mechanism, the slider-crank mechanism include crank, connecting rod and sliding block, the both ends point of the connecting rod It is not connected with the crank and the sliding block, the sliding block is located in the shell with being reciprocally moveable;Driving part, the drive Dynamic component is connected to drive the crank to rotate with one end of the crank;Mobile putter, one end of the mobile putter and institute Sliding block cooperation is stated to drive the sliding block mobile, the other end of the mobile putter is suitable for being connected with the pedal;First elasticity Part, first elastic component are located in the shell, and the both ends of first elastic component are only against the shell and described respectively On sliding block;Second elastic component, second elastic component are located in the shell, and one end of second elastic component is located in described On shell, when the pedal is not triggered, the other end of second elastic component and the sliding block interval are arranged, the sliding block It is contacted with second elastic component after mobile setting stroke to compress second elastic component.
The pedal sense simulator of vehicle according to an embodiment of the present invention utilizes driving part and the first elastic component, the second bullet Property part to slider-crank mechanism comprehensive function power and passes to mobile putter, and pedal simulated behavior is come out, can satisfy and step on Plate characteristic is nonlinear demand.Pedal brake feels that feedback obtains removing intermediate variable (such as liquid after driver steps on pedal Pressure, air pressure etc.), by using the pedal sense in purely mechanic mechanism analog driving conditions, so as to improve motor vehicle braking system Response speed and mechanical performance, improve the integrability degree of vehicle, high reliablity and axial arrangement is compact, bearing capacity Greatly.
It according to some embodiments of the present invention, further include length-adjustable link assembly, the both ends point of the link assembly It is not connected with the other end of the mobile putter and the pedal.
In some embodiments of the invention, the link assembly includes: the first connector, and the of first connector One end is connected with the mobile putter, and the second end of first connector is equipped with external screw thread;Second connector, described second connects The first end housing of fitting is threadedly engaged on first connector and with the external screw thread, and the second of second connector End is suitable for being connected with the pedal;Adjusting nut, the adjusting nut housing on first connector and with the outer spiral shell Line is threadedly engaged.
Further, the first end of first connector is equipped with the articulated joint of ball pair, and the mobile putter is equipped with and institute State the mating groove of ball pair articulated joint cooperation.
It according to some embodiments of the present invention, further include installation shell, the installation shell is located on the shell, described Driving part is located in the mounting shell body.
According to some embodiments of the present invention, the sliding block is hollow, and the connecting rod is extend into the sliding block, described Slider-crank mechanism further includes connecting shaft and locating piece, the connecting shaft be threaded through on the connecting rod and the connecting shaft at least The sliding block is stretched out in one end, and the end of the stretching of the locating piece and the connecting shaft sliding block cooperates with by the connecting shaft Positioning is on the slide block.
According to some embodiments of the present invention, the sliding block and the mobile putter are integrally formed part.
According to some embodiments of the present invention, the driving part includes: motor;Input gear, the input gear are set To be rotated by the motor driven on the motor shaft of the motor;Output gear, the output gear and the input gear Engagement, one end of the crank are located on the output gear to be driven and be rotated by the output gear.
Further, the diameter of the input gear is less than the diameter of the output gear.
Vehicle according to an embodiment of the present invention, comprising: car body, the car body are equipped with electronic control unit;Pedal, it is described Pedal is rotatably arranged on the car body;Pedal sense simulator, the pedal sense simulator are to appoint according in claim 1-9 Pedal sense simulator, the shell described in one are located on the car body, and the mobile putter is connected with the pedal, described Driving part is connected with the electronic control unit;For detecting the detection device of the stroke of the pedal, the detection device It is connected with the electronic control unit.
Vehicle according to an embodiment of the present invention, using driving part and the first elastic component, the second elastic component to crank block Synthesis of mechanism active force simultaneously passes to mobile putter, and pedal simulated behavior is come out, and it is non-linear for can satisfy pedal characteristic Demand.Pedal brake feels that feedback obtains removing intermediate variable (such as hydraulic, air pressure) after driver steps on pedal, passes through Using the pedal sense in purely mechanic mechanism analog driving conditions, so as to improve the response speed and machinery of motor vehicle braking system Performance, improves the integrability degree of vehicle, high reliablity and axial arrangement is compact, large carrying capacity.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures Obviously and it is readily appreciated that, in which:
Fig. 1 is the simple structure figure of the pedal sense simulator of vehicle according to an embodiment of the present invention;
Fig. 2 is the structural schematic diagram of the pedal sense simulator of vehicle according to an embodiment of the present invention;
Fig. 3 is the structural schematic diagram of the link assembly of the pedal sense simulator of vehicle according to an embodiment of the present invention;
Fig. 4 is the partial structural diagram of the pedal sense simulator of vehicle according to an embodiment of the present invention;
Fig. 5 is the partial structural diagram of the pedal sense simulator of vehicle according to an embodiment of the present invention;
Fig. 6 is the partial structural diagram of the pedal sense simulator of vehicle according to an embodiment of the present invention;
Fig. 7 is the cross section structure schematic diagram of the pedal sense simulator of vehicle according to an embodiment of the present invention.
Appended drawing reference:
Pedal sense simulator 1, pedal 2, electronic control unit 3, detection device 4,
Shell 10, open end 11, choke 111, closed end 12, central through hole 121,
Slider-crank mechanism 20,
Crank 21, connecting rod 22, connecting rod cap 221, body part 222, connecting-rod bolts 223, connecting rod nut 224,
Sliding block 23, convex block 231, connecting shaft 24, locating piece 25, bearing shell 26,
Driving part 30, motor 31, motor shaft 310, flat key 320, input gear 32, output gear 33,
Mobile putter 40, mating groove 400,
First elastic component 50,
Second elastic component 70,
Link assembly 90, the first connector 91, ball pair articulated joint 911, the second connector 92, adjusting nut 93,
Installation shell 100, open ports 110,
Bearing assembly 200, bearing block 210, bearing 220, shaft 230.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " length ", " width ", " thickness ", "upper", The orientation or positional relationship of the instructions such as "lower", "front", "rear", "left", "right", "inner", "outside", " axial direction ", " radial direction ", " circumferential direction " To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as Limitation of the present invention.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more Multiple this feature.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.
As shown in Fig. 1-Fig. 2 and Fig. 4-Fig. 7, the pedal sense simulator 1 of vehicle according to an embodiment of the present invention, vehicle includes Pedal 2, pedal sense simulator 1 include shell 10, slider-crank mechanism 20, driving part 30, mobile putter 40, the first elastic component 50 and second elastic component 70.
Specifically, slider-crank mechanism 20 includes crank 21, connecting rod 2 and sliding block as shown in Fig. 1-Fig. 2 and Fig. 4-Fig. 7 23, the both ends of connecting rod 2 are connected with crank 21 and sliding block 23 respectively, and sliding block 23 is located in shell 10 with being reciprocally moveable.Driving portion Part 30 is connected to drive crank 21 to rotate with one end of crank 21.One end of mobile putter 40 and sliding block 23 cooperate to drive sliding block 23 is mobile, and the other end of mobile putter 40 is suitable for being connected with pedal 2.First elastic component 50 is located in shell 10, the first elastic component 50 both ends are only against on shell 10 and sliding block 23 respectively.Second elastic component 70 is located in shell 10, and the one of the second elastic component 70 End is located on shell 10, and when pedal 2 is not triggered, the other end and sliding block 23 interval of the second elastic component 70 are arranged, sliding block It is contacted with the second elastic component 70 after 23 mobile setting strokes to compress the second elastic component 70.
For example, shell 10 has open end 11 and closed end 12 as shown in fig. 7, shell 10 can be formed as barrel-like structure, Open end 11 has choke 111, and the bore of choke 111 is less than the aperture at 10 middle part of shell, and closed end 12 has perforation Central through hole 121, sliding block 23 are located in shell 10.Driving part 30 and one end of crank 21 are pivotably connected, crank 21 One end of the other end and connecting rod 2 is pivotably connected, the other end of connecting rod 2 protruded into shell 10 from open end 11 and with sliding block 23 One end be pivotably connected, one end of mobile putter 40 passes through central through hole 121 and connect with the other end of sliding block 23, moves and pushes away The other end of bar 40 is connect with pedal 2.Sliding block 23 has convex block 231 close to one end of mobile putter 40, and convex block 231 is set to sliding block 23 periphery wall.
First elastic component 50 is located in shell 10, and the first elastic component 50 can be externally fitted to sliding block 23, the first elastic component 50 One end can offset with convex block 231, and the other end of the first elastic component 50 can offset with choke 111.First elastic component 50 with There is gap, the first elastic component 50 can be compressed or be stretched, and sliding block 23 is relative to shell 10 between the internal perisporium of shell 10 It can slide.Second elastic component 70 also is located in shell 10, and the second elastic component 70 can be externally fitted to sliding block 23, the second elastic component 70 One end can be connect with choke 111.There is gap, the second elastic component between second elastic component 70 and the internal perisporium of shell 10 70 can be compressed or be stretched.When pedal 2 is not triggered, the other end and convex block 231 interval of the second elastic component 70 are arranged, To the left after (left side as shown in Figure 1) mobile a distance, convex block 231 contacts sliding block 23 with the second elastic component 70, when sliding block 23 after Continuous when being moved to the left, convex block 231 compresses the second elastic component 70.
Driving part 30 can drive one end of crank 21 to rotate, for example, driving part 30 can drive the one of crank 21 Circular-rotation is done in the end at end, and so as to drive connecting rod 2 to move, connecting rod 2 can move in turn with movable slider 23, and shell 10 can To limit the movement of sliding block 23, sliding block 23 can do back and forth movement along the axis direction of shell 10.Pedal 2 can push movement to push away Bar 40 moves, and mobile putter 40 may further push sliding block 23 to do back and forth movement, sliding block 23 along the axis direction of shell 10 And then the first elastic component 50, the second elastic component 70 can be compressed.The active force of pedal 2 can be passed to pedal by mobile putter 40 Feel the other structures component in simulator 1, can be used for compressing the first elastic component 50 and the second elastic component 70.
In vehicle operation, when driver needs to be implemented vehicle braking function, driver steps on pedal 2, and pedal 2 pushes away Dynamic mobile putter 40 moves to the left (left side as shown in Figure 1), and mobile putter 40 can push sliding block 23 to be moved to the left in turn, sliding block 23 convex block 231 starts to contact with the first elastic component 50, and starts to compress the first elastic component 50.Correspondingly, the first elastic component 50 Compressive deformation opposition can be formed to convex block 231, and pass to mobile putter 40, mobile putter 40 can by The active force on right (right side as shown in Figure 1).It should be noted that the distance being moved to the left when sliding block 23 is greater than convex block 231 and the When interval between two elastic components 70, convex block 231 can compress the second elastic component 70, and the compressive deformation of the second elastic component 70 can be right Convex block 231 forms opposition, and passes to mobile putter 40, and mobile putter 40 can be by (as shown in Figure 1 to the right It is right) active force.
Driving part 30 can drive crank 21 to move, and crank 21 can drive connecting rod 2 to move in turn, and connecting rod 2 is further Band movable slider 23 is mobile, and sliding block 23 can provide power-assisted to mobile putter 40, reduces the opposition that mobile putter 40 is subject to, Mobile putter 40 is set to obtain suitable opposition, which is brake pedal force, to simulate pedal force With the target value of pedal travel.It should be noted that can pass through when driver's pushes pedals 2 feel partially soft or partially hard Change the driving force of driving part 30 to change active force suffered by mobile putter 40, driver is made to obtain more good pedal Sense.
The pedal sense simulator 1 of vehicle according to an embodiment of the present invention utilizes driving part 30 and the first elastic component 50, Two elastic components 70 are to 20 comprehensive function power of slider-crank mechanism and pass to mobile putter 40, and pedal simulated behavior is come out, Can satisfy pedal characteristic is nonlinear demand.During pedal brake feels after driver steps on pedal 2 that feedback is removed Between variable (such as hydraulic, air pressure), by using the pedal sense in purely mechanic mechanism analog driving conditions, so as to improve vehicle The response speed and mechanical performance of braking system, improve the integrability degree of vehicle, high reliablity and axial arrangement is tight It gathers, large carrying capacity.
As shown in Figure 1-Figure 3, according to some embodiments of the present invention, pedal sense simulator 1 can also include that length is adjustable Link assembly 90, the both ends of link assembly 90 are connected with the other end of mobile putter 40 and pedal 2 respectively.It is understood that It is that one end of link assembly 90 can be connect with mobile putter 40, the other end of link assembly 90 can be connect with pedal 2.Even Between mobile putter 40 and pedal 2, link assembly 90 can be used for transmitting between pedal 2 and mobile putter 40 bar assembly 90 Active force, link assembly 90 can also adjust the starting force of pedal 2 and the idle stroke of pedal 2.
Further, as shown in Fig. 2-Fig. 3 and Fig. 7, link assembly 90 includes the first connector 91,92 and of the second connector Adjusting nut 93.The first end of first connector 91 is connected with mobile putter 40, and the second end of the first connector 91 is equipped with outer spiral shell Line.The first end housing of second connector 92 is threadedly engaged on the first connector 91 and with external screw thread, the second connector 92 Second end is suitable for being connected with pedal 2.93 housing of adjusting nut is threadedly engaged on the first connector 91 and with external screw thread.For example, Second connector 92 can be equipped with threaded hole, and one end of the first connector 91 can be clamped with mobile putter 40, the first connector The periphery wall of 91 other end is equipped with screw thread, and the other end of the first connector 91 can be threaded through in threaded hole and connect with second Part 92 is threadedly coupled, and adjusting nut 93 is set in the other end of the first connector 91,91 spiral shell of adjusting nut 93 and the first connector Line connection, adjusting nut 93 are located between mobile putter 40 and the second connector 92.As a result, the first connector 91 can be used for by Second connector 92 is connected with mobile putter 40, and position of the adjusting nut 93 on the first connector 91 is adjustable, is adjusted Section nut 93 can be used for adjusting the starting force of pedal 2 and the idle stroke of pedal 2.Second connector 92 can be connect with pedal 2, To transmit pedal brake power.
Further, as shown in Fig. 2-Fig. 3, the first end of the first connector 91 is equipped with ball pair articulated joint 911, mobile putter 40 are equipped with the mating groove 400 cooperated with ball pair articulated joint.For example, ball pair articulated joint 911 can be set in the first connector It 91 first end and is clamped with the first connector 91, ball pair articulated joint 911 can protrude into mating groove 400, ball pair articulated joint 911 are cooperatively connected with mating groove 400.Ball pair articulated joint 911 can be used for connecting mobile putter 40, pedal 2 and mobile putter Driving torque between 40.
As shown in Fig. 2, Fig. 4 and Fig. 7, according to some embodiments of the present invention, pedal sense simulator 1 further includes installation shell 100, installation shell 100 is located on shell 10, and driving part 30 is located in installation shell 100.It is understood that installation shell 100 connect with shell 10, install and form installation space inside shell 100, driving part 30 is located in installation space.For example, peace Dress shell 100 can form open ports 110, and open ports 110 are connect with open end 11, install inside and the shell 10 of shell 100 Inside connection, connecting rod 2 can shuttle in the intersection of installation shell 100 and shell 10, and a part of connecting rod 22, which is located at, to be installed In shell 100, another part of connecting rod 22 is located in shell 10.Installation shell 100 can be used for installing driving part as a result, 30, driving part 30 is protected, can prevent dust and water from impacting to the performance of driving part 30, pedal sense mould can be improved The leakproofness of quasi- device 1, prevents driving part 30 from being collided with or being damaged, can also reduce the mechanical noise of driving part 30.
As shown in fig. 7, according to some embodiments of the present invention, sliding block 23 can be hollow, connecting rod 22 can be extend into In sliding block 23.Slider-crank mechanism 20 further includes connecting shaft 24 and locating piece 25, and connecting shaft 24 is threaded through on connecting rod 22 and connects Sliding block 23 is stretched out at least one end of axis 24, and the end of the stretching sliding block 23 of locating piece 25 and connecting shaft 24 cooperates with by connecting shaft 24 It is located on sliding block 23.For example, sliding block 23 can be formed as tubular closed at one end, and closed one end has the convex block of annular 231, annular convex block 231 extends along the circumferential direction of tubular sliding block 23, and a part of of connecting rod 22 can open wide from sliding block 23 One end protrude into inside sliding block 23, protrude into the connecting rod 22 of sliding block 23 end can be equipped with through hole, through hole can the company of perforation Bar 22, can be equipped with connecting shaft 24 in through hole, and one end of connecting shaft 24 can penetrate through the peripheral wall of sliding block 23, locating piece 25 with Connecting shaft 24 is located at the mating connection of the end outside sliding block 23, so that the end of the connecting shaft 24 is limited to outside sliding block 23.
Certainly, locating piece 25 can be two, the both ends of connecting shaft 24 can extend to perforation sliding block 23 peripheral wall, two Locating piece 25 can fix two ends of a connecting shaft 24 respectively.Thus, it is possible to be convenient for the company of connecting rod 22 and sliding block 23 It picks up and, connecting shaft 24 can connect connecting rod 22 and sliding block 23, transmit the active force between connecting rod 22 and sliding block 23.Locating piece 25 It can prevent connecting shaft 24 from shifting with axially position connecting shaft 24.Setting hollow for sliding block 23 can reduce the matter of sliding block 23 Amount, so as to improve the stress sensitivity of sliding block 23, different active forces is acted on sliding block 23, and sliding block 23 can be formed not The displacement of same distance.
It should be noted that the specific embodiment of 25 fixed connection shaft 24 of locating piece is not especially limited, for example, Locating piece 25 can be formed as cyclic annular, and locating piece 25 can be clamped with housing in the end of connecting shaft 24 and with connecting shaft 24, positioning Part 25 or positioning pin, the connecting shaft 24 outside sliding block 23 can be equipped with through-hole, and positioning pin can be threaded through through-hole Interior, positioning pin can be connect with 24 interference of part connecting shaft corresponding to through-hole.Further, connecting shaft 24 can be piston Pin.Further, bearing shell 26 can be equipped between connecting shaft 24 and connecting rod 22, bearing shell 26 is coated at connecting shaft 24, bearing shell 26 It is threaded through in through hole.Wearability between connecting shaft 24 and connecting rod 22 and gearing can be improved in bearing shell 26 as a result, can be with For connecting, support link 22.
According to some embodiments of the present invention, sliding block 23 and mobile putter 40 are integrally formed part.Thus, it is possible to improve cunning Connective stability between block 23 and mobile putter 40, so as to stablize the motion transmission between sliding block 23 and mobile putter 40 Performance.
As shown in Fig. 1, Fig. 5-Fig. 7, according to some embodiments of the present invention, driving part 30 may include motor 31, defeated Enter gear 32 and output gear 33.Input gear 32 is located on the motor shaft 310 of motor 31 output to be driven and be rotated by motor 31 Gear 33 is engaged with input gear 32, and one end of crank 21 is located on output gear 33 to be driven and be rotated by output gear 33.It can With understanding, motor 31 can be rotated with drive motor shaft 310, and input gear 32 can be set on motor shaft 310, so as to To rotate with motor shaft 310, the groove of output gear 33 can be engaged with the groove of input gear 32, as a result, input gear 32 rotation can drive output gear 33 to rotate in turn, and one end of crank 21 can be connect with output gear 33, and crank 21 can To rotate with output gear 33, the effect of input gear 32 and output gear 33 is deceleration torque increase.
Further, there is flat key 320, flat key 320 can be used for transmitting motor between motor shaft 310 and input gear 32 Torque between axis 310 and input gear 32.Flat key is by two sides as working face, by the extruding of key and key slot side To transmit the key of torque.Flat key is divided into plain edition flat key, type thin flat key, three kinds of guidance type flat key.Plain edition flat key is good to neutrality, Positioning accuracy is high, folding is convenient, but cannot achieve the axial restraint of parts on shaft, for high speed or absorbs impact, varying load Axis;Type thin flat key is for thin-wall construction and the transmitting lesser place of torque;Guidance type flat key is fixed on key on axis with screw, uses In the occasion little along axis amount of movement of the part on axis.
It should be noted that being not especially limited for input gear 32 and the dimensions of output gear 33, in this hair In bright some embodiments, the diameter of input gear 32 is less than the diameter of output gear 33.It is understood that input gear 32 Dimensions it is small relative to the dimensions of output gear 33, the revolving speed of output gear 33 is less than the revolving speed of input gear 32. Thus, it is possible to which the mating reaction using input gear 32 and output gear 33 passes to crank 21 to reduce the revolving speed of motor 31 Revolving speed, input gear 32 and output gear 33 can be used as deceleration component.It is possible to further defeated by the way that crank 21 to be connected to Out to realize the different rotational angular velocity of crank 21 at the different location of gear 33.
As shown in Figure 1, vehicle according to an embodiment of the present invention, including car body, pedal 2, pedal sense simulator 1 and detection dress Set 4.Car body is equipped with electronic control unit 3, and pedal 2 is rotatably arranged on car body.Pedal sense simulator 1 is according to institute as above The pedal sense simulator 1 stated.Shell 10 is set on the car body, and mobile putter 40 is connected with pedal 2, driving part 30 and electronic control Unit 3 is connected.Detection device 4 can be used for detecting the stroke of pedal 2, and detection device 4 is connected with electronic control unit 3.
When vehicle needs to brake, driver's pushes pedals 2, detection device 1 passes to electricity after detecting the stroke of pedal 2 Sub-control unit 3, electronic control unit 3 can control the revolving speed of motor 31 in turn, to be formed accordingly to mobile putter 40 Power-assisted, and pedal 2 is passed to, feel to form pedal brake to driver.
Vehicle according to an embodiment of the present invention utilizes driving part 30 and 70 pairs of the first elastic component 50, the second elastic component songs 20 comprehensive function power of handle slide block mechanism simultaneously passes to mobile putter 40, and pedal simulated behavior is come out, and can satisfy pedal spy Property be nonlinear demand.Pedal brake feel after driver steps on pedal 2 feedback obtain removing intermediate variable (it is such as hydraulic, Air pressure etc.), by using the pedal sense in purely mechanic mechanism analog driving conditions, so as to improve the sound of motor vehicle braking system Speed and mechanical performance are answered, improves the integrability degree of vehicle, high reliablity and axial arrangement is compact, large carrying capacity.
Further, electronic control unit 3 can be ECU (Electronic Control Unit) electronic control unit, Also known as " car running computer ", " vehicle-mounted computer " etc..It is then automobile specified microcomputerized controller from purposes.It and common computer one Sample, by microprocessor (CPU), memory (ROM, RAM), input/output interface (I/O), analog-digital converter (A/D) and whole The large scale integrated circuits such as shape, driving composition.Exactly " brain that ECU is exactly automobile " is described with a simple simon says.Detection Device 4 can be sensor.Sensor can experience measured information, and the information that can will be experienced, and become according to certain rules It changes into as electric signal or the information of form needed for other exports, to meet transmission, processing, storage, display, record and the control of information System etc. requires.
The voltage power supply range of ECU is generally in 6.5-16V (internal key aspect has stable-pressure device), operating current in 0.015- 0.1A, operating temperature are at -40 DEG C~80 DEG C.1000Hz vibration below can be born, therefore the probability of ECU damage is very small, CPU is core in ECU, it has the function of operation and control, and at runtime, it acquires the letter of each sensor to engine Number, operation is carried out, and the result of operation is changed into control signal, controls the work of controlled device.It is also carried out to memory The control of (ROM/FLASH/EEPROM, RAM), input/output interface (I/O) and other external circuits;It is stored in memory ROM Program be through accurately calculating with many experiments obtain data based on write out, this intrinsic program is in engine When work, the signal of each sensor constantly come with acquisition is compared and calculates.The result for comparing and calculating be used to pair The control of the multiple parameters such as igniting, air-fuel ratio, idling, the exhaust gas recycling of engine.
Pedal sense simulator 1 according to an embodiment of the present invention is described in detail below with reference to Fig. 1-Fig. 7.It is worth understanding, It is described below to be merely illustrative, rather than to concrete restriction of the invention.
As shown in Fig. 1-Fig. 7, the pedal sense simulator 1 of vehicle according to an embodiment of the present invention, vehicle includes pedal 2, is stepped on Plate sense simulator 1 includes shell 10, slider-crank mechanism 20, driving part 30, mobile putter 40, the first elastic component 50, second Elastic component 70, link assembly 90 and installation shell 100.
Specifically, shell 10 can be formed as barrel-like structure as shown in Fig. 2, Fig. 4 and Fig. 7, shell 10 has open end 11 and closed end 12, open end 11 has choke 111, and the bore of choke 111 is less than the aperture at 10 middle part of shell, closed end 12 have the central through hole 121 of perforation, and sliding block 23 is located in shell 10.
As shown in Fig. 2, Fig. 4 and Fig. 7, installation shell 100 can be formed as cylindrical, and installation shell 100, which is equipped with, to be opened wide Mouth 110, open ports 110 are connect with the open end 11 of shell, and the inside of installation shell 100 is connected to the inside of shell 10.Driving Component 30 is located in installation shell 100, and driving part 30 may include motor 31, input gear 32 and output gear 33.Motor 31 have motor shaft 310, and input gear 32 is located on the motor shaft 310 of motor 31 to be driven and be rotated by motor 31, output gear 33 engage with input gear 32, and the diameter of input gear 32 is less than the diameter of output gear 33.
As shown in Figure 5, Figure 7, one end of crank 21 is connect with output gear 33, the other end of crank 21 and the one of connecting rod 22 End is pivotably connected, and the other end of connecting rod 22 protrudes into shell 10 from open end 11, and connecting rod 22 can shuttle in installation shell 100 are located in installation shell 100 with the junction of shell 10, a part of connecting rod 22, and another part of connecting rod 22 is located at shell In 10.
As shown in Fig. 1, Fig. 6, driving part 30 can also include bearing assembly 200, and bearing assembly 200 includes two bearings 210, two bearings 220 of seat and shaft 230, two bearing blocks 210 are threaded through on installation shell 100, and two bearing blocks 210 are symmetrical Distribution, each bearing block 210 is interior to be equipped with a bearing 220, and two bearings 220 distinguish housings in the both ends of shaft 230, output gear Wheel 33 is set in shaft 230.Bearing assembly 200 can be used for supporting output gear 33, and bearing block 210 can be with spring bearing 220, bearing 220 is used to support shaft 230, keeps the normal operation position and running accuracy of shaft 230, reduces shaft 230 The effects of friction loss, bearing block 210 can also play sealing, dust-proof, waterproof with the installation cooperation of shell 100.
As shown in fig. 7, sliding block 23 can be formed as tubular closed at one end, and closed one end has the convex block of annular 231, annular lug 231 extends along the circumferential direction of tubular sliding block 23, and a part for protruding into the connecting rod 22 in shell 10 can be with It is protruded into inside sliding block 23 from the open one end of sliding block 23, the end for protruding into the connecting rod 22 of sliding block 23 can be equipped with through hole, run through Hole can penetrate through connecting rod 22, and connecting shaft 24 can be equipped in through hole, and the both ends of connecting shaft 24 can extend to perforation sliding block 23 peripheral wall, locating piece 25 can be two, and two locating pieces 25 can fix two ends of a connecting shaft 24 respectively.It is fixed Position part 25 can be formed as cyclic annular, and locating piece 25 can be clamped with housing in the end of connecting shaft 24 and with connecting shaft 24.
First elastic component 50 is located in shell 10, and the first elastic component 50 can be externally fitted to sliding block 23, the first elastic component 50 One end can offset with convex block 231, and the other end of the first elastic component 50 can offset with choke 111.First elastic component 50 with There is gap, the first elastic component 50 can be compressed or be stretched, and sliding block 23 is relative to shell 10 between the internal perisporium of shell 10 It can slide.Second elastic component 70 also is located in shell 10, and the second elastic component 70 can be externally fitted to sliding block 23, the second elastic component 70 One end can be connect with choke 111.There is gap, the second elastic component between second elastic component 70 and the internal perisporium of shell 10 70 can be compressed or be stretched.When pedal 2 is not triggered, the other end and convex block 231 interval of the second elastic component 70 are arranged, To the left after (left side as shown in Figure 1) mobile a distance, convex block 231 contacts sliding block 23 with the second elastic component 70, when sliding block 23 after Continuous when being moved to the left, convex block 231 compresses the second elastic component 70.
As shown in figure 5, connecting rod 22 includes body part 222 and connecting rod cap 221, body part 222 and connecting rod cap 221 pass through connecting rod Bolt 223 and connecting rod nut 224 connect, and effect is connecting crank 21 and mobile putter 40, by the rotary motion of crank 21 It is changed into the linear motion of mobile putter 40, while is to act on the power of mobile putter 40 as stepping on using the torque conversion of crank 21 One of the analog element of plate power.
As Figure 6-Figure 7, one end of mobile putter 40 passes through central through hole 121 and sliding block 23 is equipped with the one of convex block 231 End connection.Link assembly 90 includes the first connector 91, the second connector 92 and adjusting nut 93.Second connector 92 can be set There is threaded hole, one end of the first connector 91 can be clamped with mobile putter 40, the periphery wall of the other end of the first connector 91 It is equipped with screw thread, the other end of the first connector 91 can be threaded through in threaded hole and be threadedly coupled with the second connector 92, adjust Nut 93 is set in the other end of the first connector 91, and adjusting nut 93 is threadedly coupled with the first connector 91, adjusting nut 93 Between mobile putter 40 and the second connector 92, the second connector 92 is connect with pedal 2.Crank 21 can bear to act on The rotary motion of output gear 33 is changed into the linear motion of mobile putter 40 by power.
In order to improve the effective brake of automobile, the pedal sense simulator 1 of the embodiment of the present invention is with brake-by-wire instead of biography It unites hydraulic or Pneumatic braking system pedal structure.Brake-by-wire not only has fast response time, control precision height, braking ability Well, it the features such as flexible arrangement, but also can be integrated with the electronic control unit 3 of vehicle, provide flexibility and changeability for vehicle Brake force.In the related technology, brake pedal and wheel cylinder are directly connected to by mechanical organs such as fluid pressure lines, and driver steps on Lower brake pedal makes automobile obtain corresponding brake force.On-line Control is moved in system, due to eliminating brake pedal and brake Between hydraulic or mechanical connection so that feedback is to the braking reaction on brake pedal when driver can not directly perceive braking Power causes the brake feel of pedal 2 bad, provides well for driver so as to avoid the brake feel of Conventional braking systems Brake pedal feel.Brake feel be it is a kind of it is comprehensive feel, it includes the vehicle system that pedal brake feeling, driver experience The factors such as dynamic deceleration, brake noise acoustically and visual vehicle deceleration, wherein pedal brake feel be Most important component part.Pedal brake of the invention feels that feedback obtains removing intermediate variable after driver steps on pedal 2 (such as hydraulic, air pressure), with the pedal sense in purely mechanic mechanism analog driving conditions, to improve the sound of motor vehicle braking system Answer speed and mechanical performance.
The working principle of pedal sense simulator 1 are as follows: the design object of pedal force is by elastic component and certain control method Pedal simulated behavior is come out.Since elastic component has a linear characteristic mostly, and pedal characteristic sometimes for be it is nonlinear, Therefore the method simulation pedal reaction force that the pedal sense simulator 1 of the embodiment of the present invention is combined using elastic component with motor 31, i.e., Using the elastic force of elastic component and the driving force of motor 31 come comprehensive simulation pedal force.The first elastic component 50 in the embodiment of the present invention With the second elastic component 70 be coaxial parallel-connection dual spring design, (under original state the first elastic component 50 be in confined state or I.e. by confined state, after the mobile specified stroke of sliding block 23, the second elastic component 70 can just be in confined state).Motor 31 Driving force acted directly on mobile putter 40 by slider-crank mechanism 20, so 2 rigidity of pedal of pedal sense simulator 1 Be it is adjustable, the first elastic component 50 and the second elastic component 70 provide based-pedal counter-force, guarantee that braking system work is stepped in real time " brake feel " of plate 2, motor 31, the first elastic component 50 and the second elastic component 70 provide target pedal force, compensated foundation together Remainder between pedal force and target pedal force.Relationship between first elastic component 50 and the second elastic component 70 and motor 31 For, when motor 31, input gear 32, output gear 33, slider-crank mechanism 20 etc. break down, when can not move, the first bullet Property part 50 and the second elastic component 70 still can move, can perceive pedal 2 by detection device 4 acts, and continues to implement effective Braking, keeps normal braking function.
In vehicle operation, when driver needs to be implemented braking function, driver steps on pedal 2, mobile putter 40 (left side as shown in Figure 1) moves to the left, and sliding block 23 compresses the firstth elastic component 50, initial pedal travel S1 is completed, in the mistake of S1 Cheng Zhong, the braking stiffness of pedal sense simulator 1 are K1.Then, mobile putter 40 continues to move to the left (left side as shown in Figure 1), Pushing sliding block 23, (left side as shown in Figure 1) movement is contacted with the second elastic component 70 to the left, and compresses 50 He of the first elastic component simultaneously Second elastic component 70 completes main pedal travel S2, and the rigidity of pedal sense simulator 1 is K2 during S2.Due to the second bullet Property part 70 and the first elastic component 50 compressive deformation, cause mobile putter 40 by opposition, motor 31 passes through input tooth The mating reaction of wheel 32 and output gear 33, torque increase drive slider-crank mechanism 20 after slowing down, and provide power-assisted to mobile putter 40, The opposition that mobile putter 40 is subject to is reduced, so that mobile putter 40 is obtained suitable opposition, the opposition As brake pedal force, to simulate the target value of pedal force and pedal travel.When driver's pushes pedals feel it is partially soft or When person is partially hard, the movement of motor 31 can be changed by electronic control unit 3, and then change the stress of mobile putter 40, make to drive The person of sailing obtains more good pedal sense.When motor 31 because certain reason breaks down, when can not move, the first elastic component 50 and Two elastic components 70 still can move, and can detecte pedal travel by detection device 4, continue to implement braking, keep braking work Energy.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this The range of invention is defined by the claims and their equivalents.

Claims (10)

1. a kind of pedal sense simulator of vehicle, the vehicle includes pedal, which is characterized in that the pedal sense simulator packet It includes:
Shell;
Slider-crank mechanism, the slider-crank mechanism include crank, connecting rod and sliding block, the both ends of the connecting rod respectively with it is described Crank is connected with the sliding block, and the sliding block is located in the shell with being reciprocally moveable;
Driving part, the driving part are connected to drive the crank to rotate with one end of the crank;
Mobile putter, one end of the mobile putter and the sliding block cooperate to drive the sliding block mobile, the mobile putter The other end be suitable for be connected with the pedal;
First elastic component, first elastic component are located in the shell, and the both ends of first elastic component are only against institute respectively It states on shell and the sliding block;
Second elastic component, second elastic component are located in the shell, and one end of second elastic component is located in described outer On shell, when the pedal is not triggered, the other end of second elastic component and the sliding block interval are arranged, and the sliding block moves It is contacted with second elastic component after dynamic setting stroke to compress second elastic component.
2. the pedal sense simulator of vehicle according to claim 1, which is characterized in that further include length-adjustable connection rod set Part, the both ends of the link assembly are connected with the other end of the mobile putter and the pedal respectively.
3. the pedal sense simulator according to claim 2 for vehicle, which is characterized in that the link assembly includes:
The first end of first connector, first connector is connected with the mobile putter, and the second of first connector End is equipped with external screw thread;
Second connector, the first end housing of second connector on first connector and with the external screw thread screw thread Cooperation, the second end of second connector are suitable for being connected with the pedal;
Adjusting nut, the adjusting nut housing are threadedly engaged on first connector and with the external screw thread.
4. the pedal sense simulator according to claim 3 for vehicle, which is characterized in that the of first connector One end is equipped with the articulated joint of ball pair, and the mobile putter is equipped with the mating groove cooperated with the ball pair articulated joint.
5. the pedal sense simulator according to claim 1 for vehicle, which is characterized in that further include installation shell, institute It states installation shell to be located on the shell, the driving part is located in the mounting shell body.
6. the pedal sense simulator according to claim 1 for vehicle, which is characterized in that the sliding block is hollow, The connecting rod is extend into the sliding block, and the slider-crank mechanism further includes connecting shaft and locating piece, and the connecting shaft is worn On the connecting rod and the sliding block, the stretching institute of the locating piece and the connecting shaft are stretched out at least one end of the connecting shaft The end cooperation of sliding block is stated to position on the slide block the connecting shaft.
7. the pedal sense simulator according to claim 1 for vehicle, which is characterized in that the sliding block and the movement Push rod is integrally formed part.
8. the pedal sense simulator of vehicle described in any one of -7 according to claim 1, which is characterized in that the driving part Include:
Motor;
Input gear, the input gear are located on the motor shaft of the motor to be rotated by the motor driven;
Output gear, the output gear are engaged with the input gear, and one end of the crank is located on the output gear It is rotated with being driven by the output gear.
9. the pedal sense simulator of vehicle according to claim 8, which is characterized in that the diameter of the input gear is less than The diameter of the output gear.
10. a kind of vehicle characterized by comprising
Car body, the car body are equipped with electronic control unit;
Pedal, the pedal are rotatably arranged on the car body;
Pedal sense simulator, the pedal sense simulator be according to pedal sense simulator of any of claims 1-9, The shell is located on the car body, and the mobile putter is connected with the pedal, the driving part and the electronic control Unit is connected;
For detecting the detection device of the stroke of the pedal, the detection device is connected with the electronic control unit.
CN201810031955.1A 2018-01-12 2018-01-12 Pedal sense simulator of vehicle and vehicle with same Active CN110027523B (en)

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